000 00328nam a2200121Ia 45e0
008 180501s1982 xx 000 0 und d
100 _aD.P.GUPTA & R.K.AGG.
245 0 _aCO-ORDINATE GEOMETRY
260 _bDELHI
_c1982
300 _a87
650 _aMAT
942 _2ddc
_cBK
999 _c685
_d685